CN217316831U

CN217316831U - Adjustable centering tool for mounting angle sensor

Info

Publication number: CN217316831U
Application number: CN202220748247.1U
Authority: CN
Inventors: 尉瑞; 李瑞君; 杨秀宇; 赵亮; 程凯; 王传武; 张国浩; 周开平; 张睿; 郤云鹏; 张�杰
Original assignee: China Coal Huajin Group Co ltd; Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Current assignee: China Coal Huajin Group Co ltd; Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-30
Anticipated expiration: 2032-04-02

Abstract

The utility model belongs to the technical field of the angle sensor installation, concretely relates to adjustable centering frock for installing angle sensor. The utility model comprises a driving mechanism, a transmission mechanism, an installation mechanism, a fine adjustment device and a pressing shaft; the transmission mechanism comprises a rotation center, a central shaft and four groups of transmission parts which are arranged around the rotation center in an equal division manner, each transmission part comprises a planet wheel, a planet shaft and a rack, the planet wheels are arranged on the planet shafts and meshed with the racks, the free ends of the racks are connected with centering pens through fine adjustment devices, the fine adjustment devices adjust the distance between the centering pens and the rotation center, the central wheels are meshed with the planet wheels of the four groups of transmission parts, and the planet wheels are meshed with the driving mechanism; the pressing shaft is installed at the end part of the central shaft through a bearing, a part to be installed is adsorbed on the pressing shaft, and the pressing shaft is connected with a control mechanism for controlling the electromagnet to be electrified. The utility model discloses can realize the concentric installation demand of different bases and installation part of large-span size, improve the commonality of centering frock.

Description

Adjustable centering tool for mounting angle sensor

Technical Field

The utility model belongs to the technical field of the angle sensor installation, concretely relates to adjustable centering frock for installing angle sensor.

Background

Along with the intelligent propulsion of a coal mine, the requirements on pose monitoring and control precision of coal mining equipment, particularly a cutting part of a heading machine, are further improved. In practice, the heading machine uses the angle sensor to realize the function by being concentric with the rotary lug frame, so that high requirements are placed on the installation position of the angle sensor. If the error caused by the position offset of the angle sensor is only solved by the control algorithm, on one hand, the data calculation amount is too large, and on the other hand, the algorithm parameters are different along with different installation positions. The mounting position of the angle sensor must be mechanically resolved. And angle sensors come in a variety of specifications.

The existing centering tool has specificity, cannot meet the installation requirements of different types of heading machine angle sensors, and needs an adjustable centering tool to realize centering on different installation parts and different bases in order to meet the universality of the centering tool.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve current centering frock problem that can not be general, provide an adjustable centering frock for installing angle sensor.

The utility model discloses a following technical scheme realizes: an adjustable centering tool for mounting an angle sensor comprises a driving mechanism, a transmission mechanism, a mounting mechanism, a fine adjustment device and a pressing shaft;

the transmission mechanism comprises a rotation center, a central shaft and four groups of transmission parts which are arranged around the rotation center in an equal division manner, each transmission part comprises a planet wheel, a planet shaft and a rack, the planet wheels are arranged on the planet shafts and meshed with the racks, the free ends of the racks are connected with centering pens through a fine adjustment device, the fine adjustment device adjusts the distance between the centering pens and the rotation center, the four centering pens are arranged in a cross shape, and the extension lines of the axes of the centering pens pass through the axis of the central shaft; a central wheel is arranged on the central shaft, the central wheel is meshed with the planet wheels of the four groups of transmission parts, and one planet wheel is meshed with the driving mechanism;

the last axle of pressing passes through the bearing and installs the tip at the center pin to both set up with one heart, the epaxial electro-magnet that has inlayed of pressing, the pressing adsorbs has the part of waiting to install, and the pressing hub connection has and is used for controlling the control mechanism of electro-magnet circular telegram.

Furthermore, the fine adjustment device comprises an adjusting bolt I, a slide block I, an adjusting bolt II and a slide block II;

the end part of the rack is provided with a transverse thread groove I and a mounting hole I as well as a longitudinal thread groove II and a mounting hole II;

the adjusting bolt I is in threaded connection with the thread groove I, and the sliding block I is propped against the front end of the adjusting bolt I and is in sliding connection with the mounting hole I;

II threaded connection of adjusting bolt are in thread groove II, and II front ends of adjusting bolt are located to slider II, and II sliding connection of slider are in mounting hole II, the centering pen presss from both sides between II and adjusting bolt II of slider, and the structure of slider I and slider II is unanimous, is the wedge structure, and the mutual top of wedge angle between them is tight.

Further, the driving mechanism comprises a driving shaft and a servo motor;

the servo motor is connected with the driving shaft, and the end part of the driving shaft is meshed with one of the four planet wheels.

Further, the application also comprises an upper shell and a lower shell;

the driving shaft, the central shaft and the planet shaft are rotatably connected to the upper shell and the lower shell through bearings.

Further, be connected with the lateral wall between last casing and the lower casing, all be equipped with the slide on the lateral wall, the rack constitutes the sliding pair with the slide.

Furthermore, the number of teeth and the modulus of the four planet wheels are the same.

Further, the length of the centering pen has various specifications.

The utility model discloses compare prior art's beneficial effect:

(1) according to the centering tool, the servo motor is used as power to drive the planet wheel and the center wheel to rotate, and finally the rack is linearly moved, so that the distance between the centering pen and the rotation center is adjusted, and the centering pens with different lengths and specifications are added, so that the concentric installation requirements of different bases and installation parts with large span sizes can be met, the problem of specificity of the existing centering tool is solved, and the universality of the centering tool is improved; and also to accommodate the centered mounting of bases and mounting parts of unknown dimensions;

(2) the electromagnet is embedded in the pressing shaft, so that on one hand, a part to be installed can be fixed or released by utilizing the magnetic force of the electromagnet, on the other hand, the positioning hole of the part to be installed can be concentric with the pressing shaft, so that the part to be installed is concentric with the central shaft, and finally the concentricity of the part to be installed and the base is realized, so that the high requirement of the installation concentricity of the part to be installed is ensured;

(3) the pressing shaft has various diameter specifications, can meet the installation requirements of parts to be installed with positioning holes of different diameters, and further expands the application range of the adjustable centering tool;

therefore, the centering requirement between different bases and parts to be installed can be met, and the universality of the tool is improved; the tool is flexible to use, and particularly the use range of the tool can be further enlarged by replacing the centering pen.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic diagram of the internal structure of the present application;

FIG. 3 is a side schematic view of the present application;

FIG. 4 is a schematic view of the present application showing the connection of the rack to the centering pen;

FIG. 5 is a schematic view of the connection of the central shaft, the pressing shaft and the part to be mounted of the present application;

FIG. 6 is a schematic illustration of an application of the present application;

in the figure: 1. a centering pen; 2. a rack; 201. adjusting a bolt I; 202. a slide block I; 203. adjusting a bolt II; 204. a sliding block II; 205. a thread groove I; 206. a mounting hole I; 207. a thread groove II; 208. mounting holes II; 3. an upper housing; 4. a planet shaft; 5. a bearing; 6. a retainer ring for a shaft; 7. a planet wheel; 8. a servo motor; 9. a drive shaft; 10. a lower housing; 11. pressing the shaft; 12 a central shaft; 13. a part to be mounted; 14. a center wheel; 15. a base.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the proportion relation or the adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The term "transverse" as used herein refers to the course of the thread groove I; "longitudinal" means the course of the thread groove II.

Referring to fig. 1 to 6, the utility model provides a technical scheme: an adjustable centering tool for mounting an angle sensor comprises a driving mechanism, a transmission mechanism, a mounting mechanism, a fine adjustment device and a pressing shaft 11;

the transmission mechanism comprises a rotation center, a central shaft 12 and four groups of transmission parts which are arranged around the rotation center in an equal division manner, each transmission part comprises a planet wheel 7, a planet shaft 4 and a rack 2, the planet wheel 7 is arranged on the planet shaft 4, the planet wheel 7 is meshed with the rack 2, the free end of the rack 2 is connected with a centering pen 1 through a fine adjustment device, the fine adjustment device adjusts the distance between the centering pen 1 and the rotation center, the four centering pens 1 are arranged in a cross shape, and the extension line of the axis of the centering pen 1 passes through the axis of the central shaft 12; a central wheel 14 is arranged on the central shaft 12, the central wheel 14 is meshed with the planet wheels 7 of the four groups of transmission parts, and one planet wheel 7 is meshed with the driving mechanism;

the tip at center pin 12 is installed through the bearing to last item 11, and both set up with one heart, the embedded electro-magnet that has of last item 11, last item 11 adsorbs to have and waits to install part 13, last item 11 is connected with the control mechanism who is used for controlling the electro-magnet circular telegram, will wait to install part 13 and last item 11 with the magnetic force that utilizes the electro-magnet to produce, center pin 12 is fixed, control mechanism control electro-magnet circular telegram and outage, thereby realize treating the fixed or the release of installing part 13 and fix, last item 11 has multiple diameter specification, the installation demand of installing part 13 is treated to the applicable different diameters.

The fine adjustment device comprises an adjusting bolt I201, a sliding block I202, an adjusting bolt II 203 and a sliding block II 204;

the end part of the rack 2 is provided with a transverse thread groove I205, a mounting hole I206, a longitudinal thread groove II 207 and a mounting hole II 208;

the adjusting bolt I201 is in threaded connection with the thread groove I205, the sliding block I202 abuts against the front end of the adjusting bolt I201 and is in sliding connection with the mounting hole I206; the axial line of the center pen 1, the extension line of which passes through the center shaft 12, is adjusted by adjusting the screwing-in depth of the adjusting bolt I201;

the adjusting bolt II 203 is in threaded connection with the thread groove II 207, the sliding block II 204 is arranged at the front end of the adjusting bolt II 203, the sliding block II 204 is in sliding connection with the mounting hole II 208, the centering pen 1 is clamped between the sliding block II 204 and the adjusting bolt II 203, the sliding block I202 and the sliding block II 204 are in the same structure and are both in wedge-shaped structures, and wedge angles of the sliding block I202 and the sliding block II 204 are mutually tightly pressed; adjusting bolt II 203 and II 204 of slider press from both sides tight fixedly to centering pen 1, loosen soon through adjusting bolt II 203 to be convenient for adjust the extension length of centering pen 1, the distance of 1 nib of centering pen to centre of gyration promptly makes all 1 nibs of centering pen unanimous to the distance of centre of gyration in construction earlier stage, carries out the school zero.

The driving mechanism comprises a driving shaft 9 and a servo motor 8;

the servo motor 8 is connected with a driving shaft 9, and the end part of the driving shaft 9 is meshed with one of the four planet wheels 7; the servomotor 8 drives one of the planet wheels 7 (this planet wheel 7 acts as a drive wheel), and this planet wheel 7 drives the central wheel 14 and, in turn, the remaining three planet wheels 7 to rotate, and finally, the rack 2, which is in mesh with the planet wheel 7, is set into linear motion.

The present application also includes an upper housing 3 and a lower housing 10;

the driving shaft 9, the central shaft 12 and the planetary shaft 4 are all rotationally connected to the upper shell 3 and the lower shell 10 through bearings 5.

Go up and be connected with the lateral wall between casing 3 and the lower casing 10, all be equipped with the slide on the lateral wall, rack 2 constitutes the slip pair with the slide, and the rack 2 of being convenient for slides more reliably stably.

The number of teeth and the modulus of the four planet wheels 7 are the same, so that the four planet wheels 7 are ensured to have the same linear speed, and further the extending/retracting distances of the centering pen and the rack are ensured to be the same.

The length of the centering pen 1 has various specifications, and the centering pen can be serialized according to the length, so that the use range is expanded.

In order to ensure that the part 13 to be mounted (namely an angle sensor) and the base 15 (namely a rotary lug support) are concentric in the mounting process; the installation of this application is not restricted to angle sensor, and it still is applicable to other required high revolving part installations of concentricity.

The utility model discloses a theory of operation:

when the centering pen works, firstly, the centering pen 1 with a proper measuring range (length) is selected and installed on the rack 2, and the distances from the tips of all the centering pens 1 to the rotation center are consistent through the adjusting bolt I201, the sliding block I202, the adjusting bolt II 203 and the sliding block II 204; secondly, selecting a pressing shaft 11 matched with a positioning hole of a part 13 to be mounted, wherein one end of the pressing shaft 11 is mounted on a central shaft 12, the other end of the pressing shaft 11 is mounted and adsorbed with the part 13 to be mounted, and the part 13 to be mounted is tightly connected with the central shaft 12 by utilizing the magnetic force of an electromagnet of the pressing shaft 11; for a base 15 with a known radius, one planet wheel 7 can be driven and driven by a servo motor 8, the planet wheel 7 drives a central wheel 14, and further drives the other planet wheels 7 to rotate, finally, a rack 2 meshed with the planet wheel 7 is linearly moved, and the straight movement is stopped and locked until the distance from the pen point of a centering pen 1 to the rotation center is the same as the radius of the base 15, then the straight movement is placed in the base 15, the base 15 and a part 13 to be installed are fixed, finally, the rack 2 of an adjustable centering tool is retracted, an electromagnet is turned off by a pressing shaft 11, the base 15 and the part 13 to be installed are separated, the whole operation process is completed, and the concentricity of a positioning hole of the part 13 to be installed and the base 15 is realized; for the base 15 with unknown radius, the position of the adjustable centering tool is gradually adjusted in a mode of coarse adjustment and fine adjustment until the center of the base 15 is found, and the positioning hole of the part 13 to be installed is concentric with the center of the base 15 by repeating the operation.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an adjustable centering frock for installing angle sensor which characterized in that: comprises a driving mechanism, a transmission mechanism, a mounting mechanism, a fine adjustment device and a pressing shaft (11);

the transmission mechanism comprises a rotation center, a central shaft (12) and four groups of transmission parts which are arranged around the rotation center in an equal division manner, each transmission part comprises a planet wheel (7), a planet shaft (4) and a rack (2), the planet wheel (7) is installed on the planet shaft (4), the planet wheel (7) is meshed with the rack (2), the free end of the rack (2) is connected with a centering pen (1) through a fine adjustment device, the fine adjustment device adjusts the distance between the centering pen (1) and the rotation center, the four centering pens (1) are arranged in a cross shape, and the extension line of the axis of the centering pen (1) passes through the axis of the central shaft (12); a central wheel (14) is arranged on the central shaft (12), the central wheel (14) is meshed with the planet wheels (7) of the four groups of transmission components, and one planet wheel (7) is meshed with the driving mechanism;

the pressing shaft (11) is arranged at the end part of the central shaft (12) through a bearing and concentrically arranged with the central shaft, an electromagnet is embedded in the pressing shaft (11), the pressing shaft (11) adsorbs a part (13) to be installed, and the pressing shaft (11) is connected with a control mechanism for controlling the electromagnet to be electrified.

2. The adjustable centering tool for mounting an angle sensor according to claim 1, characterized in that: the fine adjustment device comprises an adjusting bolt I (201), a sliding block I (202), an adjusting bolt II (203) and a sliding block II (204);

the end part of the rack (2) is provided with a transverse thread groove I (205), a mounting hole I (206), a longitudinal thread groove II (207) and a mounting hole II (208);

the adjusting bolt I (201) is in threaded connection with the thread groove I (205), the sliding block I (202) abuts against the front end of the adjusting bolt I (201) and is in sliding connection with the mounting hole I (206);

adjusting bolt II (203) threaded connection is in thread groove II (207), and the front end of adjusting bolt II (203) is located in slider II (204), and slider II (204) sliding connection is in mounting hole II (208), centering pen (1) presss from both sides between slider II (204) and adjusting bolt II (203), and the structure of slider I (202) and slider II (204) is unanimous, is the wedge structure, and the wedge angle between them is tight each other in top.

3. An adjustable centering tool for mounting an angle sensor according to claim 1 or 2, characterized in that: the driving mechanism comprises a driving shaft (9) and a servo motor (8);

the servo motor (8) is connected with a driving shaft (9), and the end part of the driving shaft (9) is meshed with one of the four planet wheels (7).

4. The adjustable centering tool for mounting an angle sensor of claim 3, wherein: the device also comprises an upper shell (3) and a lower shell (10);

the driving shaft (9), the central shaft (12) and the planet shaft (4) are rotatably connected to the upper shell (3) and the lower shell (10) through bearings (5).

5. The adjustable centering tool for mounting an angle sensor according to claim 4, characterized in that: the upper shell (3) and the lower shell (10) are connected with a side wall, the side wall is provided with a slide way, and the rack (2) and the slide way form a sliding pair.

6. The adjustable centering tool for mounting an angle sensor of claim 5, wherein: the number of teeth and the modulus of the four planet wheels (7) are the same.

7. The adjustable centering tool for mounting an angle sensor of claim 6, wherein: the length of the centering pen (1) has various specifications.